Carbohydrate metabolism assistance please - (Dec/01/2012 )

I need to do an essay titled Discuss the biochemical principles behind carbohydrate metabolism can anyone give me an idea how to start this and what to include? Thanks.

Read about carbohydrate chemistry first, then biochemical mechanism, Now think about food items and what carbohydrates they produce. Consider living organism e.g. cow eating food correlate food metabolism with energy production in animal.

Rough points. ofcourse essay will need most of non-jargon words so readers will not be scared off.